[PATCH 19/27] HID: wacom: EKR: have one array of struct remotes instead of many arrays

Benjamin Tissoires
2016-07-05T14:40:24Z

No functional changes, just a prep patch for the one after.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
drivers/hid/wacom.h | 6 ++++--
drivers/hid/wacom_sys.c | 53 +++++++++++++++++++++++++------------------------
drivers/hid/wacom_wac.c | 2 +-
3 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/drivers/hid/wacom.h b/drivers/hid/wacom.h
index 110ea67..6b8df67 100644
--- a/drivers/hid/wacom.h
+++ b/drivers/hid/wacom.h
@@ -120,8 +120,10 @@ struct wacom_remote {
spinlock_t remote_lock;
struct kfifo remote_fifo;
struct kobject *remote_dir;
- struct attribute_group remote_group[WACOM_MAX_REMOTES];
- __u32 serial[WACOM_MAX_REMOTES];
+ struct {
+ struct attribute_group group;
+ u32 serial;
+ } remotes[WACOM_MAX_REMOTES];
};

struct wacom {
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 9121e72..c3b2692 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -1308,16 +1308,16 @@ static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial,
int error = 0;
struct wacom_remote *remote = wacom->remote;

- remote->remote_group[index].name = devm_kasprintf(&wacom->hdev->dev,
+ remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev,
GFP_KERNEL,
"%d", serial);
- if (!remote->remote_group[index].name)
+ if (!remote->remotes[index].group.name)
return -ENOMEM;

error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir,
- &remote->remote_group[index]);
+ &remote->remotes[index].group);
if (error) {
- remote->remote_group[index].name = NULL;
+ remote->remotes[index].group.name = NULL;
hid_err(wacom->hdev,
"cannot create sysfs group err: %d\n", error);
return error;
@@ -1421,11 +1421,11 @@ static int wacom_initialize_remotes(struct wacom *wacom)
return -ENOMEM;
}

- remote->remote_group[0] = remote0_serial_group;
- remote->remote_group[1] = remote1_serial_group;
- remote->remote_group[2] = remote2_serial_group;
- remote->remote_group[3] = remote3_serial_group;
- remote->remote_group[4] = remote4_serial_group;
+ remote->remotes[0].group = remote0_serial_group;
+ remote->remotes[1].group = remote1_serial_group;
+ remote->remotes[2].group = remote2_serial_group;
+ remote->remotes[3].group = remote3_serial_group;
+ remote->remotes[4].group = remote4_serial_group;

remote->remote_dir = kobject_create_and_add("wacom_remote",
&wacom->hdev->dev.kobj);
@@ -1442,7 +1442,7 @@ static int wacom_initialize_remotes(struct wacom *wacom)

for (i = 0; i < WACOM_MAX_REMOTES; i++) {
wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
- remote->serial[i] = 0;
+ remote->remotes[i].serial = 0;
}

error = devm_add_action_or_reset(&wacom->hdev->dev,
@@ -1903,16 +1903,17 @@ fail:
static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
{
struct wacom_remote *remote = wacom->remote;
- u32 serial = remote->serial[index];
+ u32 serial = remote->remotes[index].serial;
int i;

- if (remote->remote_group[index].name)
- devres_release_group(&wacom->hdev->dev, &remote->serial[index]);
+ if (remote->remotes[index].group.name)
+ devres_release_group(&wacom->hdev->dev,
+ &remote->remotes[index]);

for (i = 0; i < WACOM_MAX_REMOTES; i++) {
- if (remote->serial[i] == serial) {
- remote->serial[i] = 0;
- remote->remote_group[i].name = NULL;
+ if (remote->remotes[i].serial == serial) {
+ remote->remotes[i].serial = 0;
+ remote->remotes[i].group.name = NULL;
wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
}
}
@@ -1929,30 +1930,30 @@ static int wacom_remote_create_one(struct wacom *wacom, u32 serial,
* check to make sure this serial isn't already paired.
*/
for (k = 0; k < WACOM_MAX_REMOTES; k++) {
- if (remote->serial[k] == serial)
+ if (remote->remotes[k].serial == serial)
break;
}

if (k < WACOM_MAX_REMOTES) {
- remote->serial[index] = serial;
+ remote->remotes[index].serial = serial;
return 0;
}

- if (!devres_open_group(dev, &remote->serial[index], GFP_KERNEL))
+ if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL))
return -ENOMEM;

error = wacom_remote_create_attr_group(wacom, serial, index);
if (error)
goto fail;

- remote->serial[index] = serial;
+ remote->remotes[index].serial = serial;

- devres_close_group(dev, &remote->serial[index]);
+ devres_close_group(dev, &remote->remotes[index]);
return 0;

fail:
- devres_release_group(dev, &remote->serial[index]);
- remote->serial[index] = 0;
+ devres_release_group(dev, &remote->remotes[index]);
+ remote->remotes[index].serial = 0;
return error;
}

@@ -1986,15 +1987,15 @@ static void wacom_remote_work(struct work_struct *work)
serial = data.remote[i].serial;
if (data.remote[i].connected) {

- if (remote->serial[i] == serial)
+ if (remote->remotes[i].serial == serial)
continue;

- if (remote->serial[i])
+ if (remote->remotes[i].serial)
wacom_remote_destroy_one(wacom, i);

wacom_remote_create_one(wacom, serial, i);

- } else if (remote->serial[i]) {
+ } else if (remote->remotes[i].serial) {
wacom_remote_destroy_one(wacom, i);
}
}
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index d5c180d..1162dc5 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -808,7 +808,7 @@ static int wacom_remote_irq(struct wacom_wac *wacom_wac, size_t len)
touch_ring_mode = (data[11] & 0xC0) >> 6;

for (i = 0; i < WACOM_MAX_REMOTES; i++) {
- if (remote->serial[i] == serial)
+ if (remote->remotes[i].serial == serial)
wacom->led.groups[i].select = touch_ring_mode;
}

--
2.5.5